<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>card demo</title>
    <link rel="stylesheet" href="./index.css">
</head>
<body>
    <div class="card card-1">
        <div class="card-item"></div>
    </div>
    <div class="card card-2">
        <div class="card-item"></div>
        <div class="card-item"></div>
    </div>
    <div class="card card-3">
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
    </div>
    <div class="card card-4">
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
    </div>
    <div class="card card-5">
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
    </div>
    <div class="card card-6">
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
    </div>
    <div class="card card-7">
        <div class="card-top">
            <div class="card-item"></div>
            <div class="card-item"></div>
            <div class="card-item"></div>
        </div>
        <div class="card-bottom">
            <div class="card-item"></div>
            <div class="card-item"></div>
            <div class="card-item"></div>
            <div class="card-item"></div>
        </div>
    </div>
    <div class="card card-8">
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
    </div>
    <div class="card card-9">
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
        <div class="card-item"></div>
    </div>
</body>
</html>